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Crustose lichen with a gray thallus and distinctive bluish-black ascospores. Pic one has been cropped to see the ascospores. They are so small that they are measured in microns. According to Wikipedia, they are between 8 and 14 microns in diameter. The overall width of the lichen was 3 cm.
Spotted on the smooth bark of a Red alder tree. The small stand of alders were covered in crustose lichens. Spring/wetland surrounded by coniferous forest. Cascade foothills.
Lat: 47.53, Long: -121.95
Spotted on Jan 25, 2020
Submitted on Feb 15, 2020